A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 6685-01-511-1892
NSN 6220-01-609-3375
NSN 6110-01-593-8570
NSN 5965-01-241-9865
NSN 5925-00-387-3956
NSN 5835-00-698-9824
NSN 5905-01-530-4070
NSN 5965-00-529-0602
NSN 6110-00-820-1660
NSN 6130-01-440-4345
NSN 6320-01-160-0416
NSN 4140-00-561-9218